./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6feca5d4270fedbde3a8e3d6dcd4bcf83513724a215067edc4c46300cba8b69c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:37:34,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:37:34,114 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:37:34,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:37:34,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:37:34,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:37:34,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:37:34,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:37:34,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:37:34,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:37:34,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:37:34,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:37:34,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:37:34,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:37:34,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:37:34,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:37:34,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:37:34,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:37:34,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:37:34,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:37:34,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:37:34,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:37:34,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:37:34,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:37:34,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:37:34,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:37:34,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:37:34,170 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:37:34,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:37:34,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:37:34,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:37:34,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:37:34,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:37:34,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:37:34,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:37:34,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:37:34,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:37:34,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:37:34,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:37:34,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:37:34,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:37:34,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:37:34,175 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6feca5d4270fedbde3a8e3d6dcd4bcf83513724a215067edc4c46300cba8b69c [2024-11-18 19:37:34,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:37:34,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:37:34,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:37:34,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:37:34,471 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:37:34,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i [2024-11-18 19:37:35,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:37:36,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:37:36,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i [2024-11-18 19:37:36,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd75e7d6/23fdfc12b1494811aafb64d5ec07ba3b/FLAGb5b07dd7a [2024-11-18 19:37:36,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd75e7d6/23fdfc12b1494811aafb64d5ec07ba3b [2024-11-18 19:37:36,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:37:36,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:37:36,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:37:36,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:37:36,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:37:36,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:36,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92c5f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36, skipping insertion in model container [2024-11-18 19:37:36,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:36,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:37:36,571 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i[916,929] [2024-11-18 19:37:36,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:37:36,755 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:37:36,768 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-94.i[916,929] [2024-11-18 19:37:36,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:37:36,868 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:37:36,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36 WrapperNode [2024-11-18 19:37:36,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:37:36,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:37:36,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:37:36,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:37:36,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:36,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:36,972 INFO L138 Inliner]: procedures = 26, calls = 96, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 612 [2024-11-18 19:37:36,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:37:36,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:37:36,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:37:36,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:37:36,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:36,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,054 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:37:37,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:37:37,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:37:37,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:37:37,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:37:37,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (1/1) ... [2024-11-18 19:37:37,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:37:37,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:37:37,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:37:37,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:37:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:37:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:37:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:37:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:37:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:37:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:37:37,366 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:37:37,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:37:38,285 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-18 19:37:38,285 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:37:38,316 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:37:38,317 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:37:38,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:38 BoogieIcfgContainer [2024-11-18 19:37:38,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:37:38,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:37:38,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:37:38,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:37:38,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:37:36" (1/3) ... [2024-11-18 19:37:38,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29971620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:38, skipping insertion in model container [2024-11-18 19:37:38,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:36" (2/3) ... [2024-11-18 19:37:38,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29971620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:38, skipping insertion in model container [2024-11-18 19:37:38,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:38" (3/3) ... [2024-11-18 19:37:38,330 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-94.i [2024-11-18 19:37:38,346 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:37:38,346 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:37:38,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:37:38,500 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a2c349c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:37:38,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:37:38,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 168 states have (on average 1.5119047619047619) internal successors, (254), 169 states have internal predecessors, (254), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 19:37:38,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-18 19:37:38,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:38,537 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:38,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:38,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash 641592162, now seen corresponding path program 1 times [2024-11-18 19:37:38,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:38,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943244147] [2024-11-18 19:37:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:38,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 13448 trivial. 0 not checked. [2024-11-18 19:37:39,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:39,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943244147] [2024-11-18 19:37:39,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943244147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:37:39,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742697601] [2024-11-18 19:37:39,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:39,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:37:39,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:37:39,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:37:39,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:37:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:39,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:37:39,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:37:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 13448 trivial. 0 not checked. [2024-11-18 19:37:39,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:37:39,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742697601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:39,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:37:39,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:37:39,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845214888] [2024-11-18 19:37:39,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:39,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:37:39,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:39,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:37:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:37:39,721 INFO L87 Difference]: Start difference. First operand has 254 states, 168 states have (on average 1.5119047619047619) internal successors, (254), 169 states have internal predecessors, (254), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Second operand has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83) [2024-11-18 19:37:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:39,798 INFO L93 Difference]: Finished difference Result 501 states and 917 transitions. [2024-11-18 19:37:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:37:39,801 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83) Word has length 522 [2024-11-18 19:37:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:39,812 INFO L225 Difference]: With dead ends: 501 [2024-11-18 19:37:39,813 INFO L226 Difference]: Without dead ends: 250 [2024-11-18 19:37:39,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:37:39,825 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:39,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:37:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-18 19:37:39,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-18 19:37:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 165 states have (on average 1.4787878787878788) internal successors, (244), 165 states have internal predecessors, (244), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 19:37:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 410 transitions. [2024-11-18 19:37:39,916 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 410 transitions. Word has length 522 [2024-11-18 19:37:39,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:39,917 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 410 transitions. [2024-11-18 19:37:39,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 2 states have call successors, (83) [2024-11-18 19:37:39,918 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 410 transitions. [2024-11-18 19:37:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-18 19:37:39,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:39,935 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:39,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:37:40,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:37:40,137 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:40,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:40,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1297769728, now seen corresponding path program 1 times [2024-11-18 19:37:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:40,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046378772] [2024-11-18 19:37:40,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:40,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:40,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046378772] [2024-11-18 19:37:40,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046378772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:40,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:40,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:37:40,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927490922] [2024-11-18 19:37:40,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:40,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:37:40,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:40,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:37:40,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:37:40,804 INFO L87 Difference]: Start difference. First operand 250 states and 410 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:41,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:41,386 INFO L93 Difference]: Finished difference Result 874 states and 1437 transitions. [2024-11-18 19:37:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:37:41,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 522 [2024-11-18 19:37:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:41,399 INFO L225 Difference]: With dead ends: 874 [2024-11-18 19:37:41,400 INFO L226 Difference]: Without dead ends: 627 [2024-11-18 19:37:41,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:41,404 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 548 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:41,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1291 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:37:41,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-18 19:37:41,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 622. [2024-11-18 19:37:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 425 states have (on average 1.5011764705882353) internal successors, (638), 426 states have internal predecessors, (638), 193 states have call successors, (193), 3 states have call predecessors, (193), 3 states have return successors, (193), 192 states have call predecessors, (193), 193 states have call successors, (193) [2024-11-18 19:37:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1024 transitions. [2024-11-18 19:37:41,514 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1024 transitions. Word has length 522 [2024-11-18 19:37:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:41,516 INFO L471 AbstractCegarLoop]: Abstraction has 622 states and 1024 transitions. [2024-11-18 19:37:41,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1024 transitions. [2024-11-18 19:37:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-18 19:37:41,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:41,529 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:37:41,530 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash 74037570, now seen corresponding path program 1 times [2024-11-18 19:37:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471717019] [2024-11-18 19:37:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:41,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471717019] [2024-11-18 19:37:41,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471717019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:41,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:41,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:37:41,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973258345] [2024-11-18 19:37:41,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:41,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:37:41,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:41,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:37:41,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:37:41,953 INFO L87 Difference]: Start difference. First operand 622 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:42,283 INFO L93 Difference]: Finished difference Result 1176 states and 1928 transitions. [2024-11-18 19:37:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:37:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 522 [2024-11-18 19:37:42,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:42,290 INFO L225 Difference]: With dead ends: 1176 [2024-11-18 19:37:42,290 INFO L226 Difference]: Without dead ends: 929 [2024-11-18 19:37:42,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:42,292 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 382 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:42,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1243 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:37:42,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-18 19:37:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 772. [2024-11-18 19:37:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 547 states have (on average 1.522851919561243) internal successors, (833), 549 states have internal predecessors, (833), 220 states have call successors, (220), 4 states have call predecessors, (220), 4 states have return successors, (220), 218 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-18 19:37:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1273 transitions. [2024-11-18 19:37:42,382 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1273 transitions. Word has length 522 [2024-11-18 19:37:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:42,384 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1273 transitions. [2024-11-18 19:37:42,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1273 transitions. [2024-11-18 19:37:42,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-18 19:37:42,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:42,390 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:42,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:37:42,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:42,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:42,391 INFO L85 PathProgramCache]: Analyzing trace with hash -626650317, now seen corresponding path program 1 times [2024-11-18 19:37:42,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:42,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845725723] [2024-11-18 19:37:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:42,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:42,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:42,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845725723] [2024-11-18 19:37:42,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845725723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:42,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:42,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:37:42,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719441630] [2024-11-18 19:37:42,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:42,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:37:42,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:42,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:37:42,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:37:42,825 INFO L87 Difference]: Start difference. First operand 772 states and 1273 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:42,907 INFO L93 Difference]: Finished difference Result 2302 states and 3797 transitions. [2024-11-18 19:37:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:37:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 523 [2024-11-18 19:37:42,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:42,920 INFO L225 Difference]: With dead ends: 2302 [2024-11-18 19:37:42,920 INFO L226 Difference]: Without dead ends: 1533 [2024-11-18 19:37:42,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:37:42,924 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 242 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:42,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 810 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:37:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2024-11-18 19:37:43,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2024-11-18 19:37:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1077 states have (on average 1.5162488393686164) internal successors, (1633), 1081 states have internal predecessors, (1633), 440 states have call successors, (440), 8 states have call predecessors, (440), 8 states have return successors, (440), 436 states have call predecessors, (440), 440 states have call successors, (440) [2024-11-18 19:37:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2513 transitions. [2024-11-18 19:37:43,117 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2513 transitions. Word has length 523 [2024-11-18 19:37:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:43,118 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 2513 transitions. [2024-11-18 19:37:43,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2513 transitions. [2024-11-18 19:37:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-18 19:37:43,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:43,125 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:43,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:37:43,126 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:43,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:43,128 INFO L85 PathProgramCache]: Analyzing trace with hash 473174001, now seen corresponding path program 1 times [2024-11-18 19:37:43,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:43,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89398068] [2024-11-18 19:37:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:43,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:43,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89398068] [2024-11-18 19:37:43,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89398068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:43,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:43,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:37:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392202971] [2024-11-18 19:37:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:43,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:37:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:43,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:37:43,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:37:43,834 INFO L87 Difference]: Start difference. First operand 1526 states and 2513 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:44,956 INFO L93 Difference]: Finished difference Result 6064 states and 9919 transitions. [2024-11-18 19:37:44,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:37:44,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 523 [2024-11-18 19:37:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:44,986 INFO L225 Difference]: With dead ends: 6064 [2024-11-18 19:37:44,986 INFO L226 Difference]: Without dead ends: 4541 [2024-11-18 19:37:44,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:44,993 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 675 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:44,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1002 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:37:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2024-11-18 19:37:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 4527. [2024-11-18 19:37:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4527 states, 3102 states have (on average 1.4771115409413282) internal successors, (4582), 3126 states have internal predecessors, (4582), 1392 states have call successors, (1392), 32 states have call predecessors, (1392), 32 states have return successors, (1392), 1368 states have call predecessors, (1392), 1392 states have call successors, (1392) [2024-11-18 19:37:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4527 states to 4527 states and 7366 transitions. [2024-11-18 19:37:45,515 INFO L78 Accepts]: Start accepts. Automaton has 4527 states and 7366 transitions. Word has length 523 [2024-11-18 19:37:45,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:45,516 INFO L471 AbstractCegarLoop]: Abstraction has 4527 states and 7366 transitions. [2024-11-18 19:37:45,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:45,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4527 states and 7366 transitions. [2024-11-18 19:37:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-18 19:37:45,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:45,522 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:45,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:37:45,522 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:45,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash 613722611, now seen corresponding path program 1 times [2024-11-18 19:37:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969759063] [2024-11-18 19:37:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:45,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:46,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:46,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969759063] [2024-11-18 19:37:46,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969759063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:46,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:46,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:37:46,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320720573] [2024-11-18 19:37:46,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:46,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:37:46,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:46,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:37:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:37:46,051 INFO L87 Difference]: Start difference. First operand 4527 states and 7366 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:47,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:47,102 INFO L93 Difference]: Finished difference Result 13833 states and 22413 transitions. [2024-11-18 19:37:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:37:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 523 [2024-11-18 19:37:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:47,169 INFO L225 Difference]: With dead ends: 13833 [2024-11-18 19:37:47,169 INFO L226 Difference]: Without dead ends: 9309 [2024-11-18 19:37:47,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:47,194 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 389 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:47,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1211 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:37:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9309 states. [2024-11-18 19:37:48,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9309 to 9113. [2024-11-18 19:37:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9113 states, 6264 states have (on average 1.462324393358876) internal successors, (9160), 6312 states have internal predecessors, (9160), 2784 states have call successors, (2784), 64 states have call predecessors, (2784), 64 states have return successors, (2784), 2736 states have call predecessors, (2784), 2784 states have call successors, (2784) [2024-11-18 19:37:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9113 states to 9113 states and 14728 transitions. [2024-11-18 19:37:48,454 INFO L78 Accepts]: Start accepts. Automaton has 9113 states and 14728 transitions. Word has length 523 [2024-11-18 19:37:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:48,455 INFO L471 AbstractCegarLoop]: Abstraction has 9113 states and 14728 transitions. [2024-11-18 19:37:48,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 9113 states and 14728 transitions. [2024-11-18 19:37:48,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-11-18 19:37:48,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:48,461 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:48,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:37:48,461 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:48,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:48,462 INFO L85 PathProgramCache]: Analyzing trace with hash -919778209, now seen corresponding path program 1 times [2024-11-18 19:37:48,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:48,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015866229] [2024-11-18 19:37:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:48,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:48,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015866229] [2024-11-18 19:37:48,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015866229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:48,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:48,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:37:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122295235] [2024-11-18 19:37:48,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:48,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:37:48,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:48,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:37:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:37:49,000 INFO L87 Difference]: Start difference. First operand 9113 states and 14728 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:50,353 INFO L93 Difference]: Finished difference Result 27333 states and 44178 transitions. [2024-11-18 19:37:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:37:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 525 [2024-11-18 19:37:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:50,500 INFO L225 Difference]: With dead ends: 27333 [2024-11-18 19:37:50,500 INFO L226 Difference]: Without dead ends: 18223 [2024-11-18 19:37:50,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:37:50,548 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 223 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:50,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 818 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:37:50,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18223 states. [2024-11-18 19:37:52,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18223 to 18157. [2024-11-18 19:37:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18157 states, 12460 states have (on average 1.449438202247191) internal successors, (18060), 12556 states have internal predecessors, (18060), 5568 states have call successors, (5568), 128 states have call predecessors, (5568), 128 states have return successors, (5568), 5472 states have call predecessors, (5568), 5568 states have call successors, (5568) [2024-11-18 19:37:52,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18157 states to 18157 states and 29196 transitions. [2024-11-18 19:37:52,579 INFO L78 Accepts]: Start accepts. Automaton has 18157 states and 29196 transitions. Word has length 525 [2024-11-18 19:37:52,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:37:52,581 INFO L471 AbstractCegarLoop]: Abstraction has 18157 states and 29196 transitions. [2024-11-18 19:37:52,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:52,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18157 states and 29196 transitions. [2024-11-18 19:37:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-18 19:37:52,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:37:52,592 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:37:52,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:37:52,592 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:37:52,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:37:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash 861888882, now seen corresponding path program 1 times [2024-11-18 19:37:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:37:52,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786398764] [2024-11-18 19:37:52,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:37:52,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:37:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:37:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:37:53,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:37:53,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786398764] [2024-11-18 19:37:53,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786398764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:37:53,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:37:53,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:37:53,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343108465] [2024-11-18 19:37:53,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:37:53,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:37:53,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:37:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:37:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:53,700 INFO L87 Difference]: Start difference. First operand 18157 states and 29196 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:37:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:37:58,051 INFO L93 Difference]: Finished difference Result 82949 states and 133456 transitions. [2024-11-18 19:37:58,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:37:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 526 [2024-11-18 19:37:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:37:58,717 INFO L225 Difference]: With dead ends: 82949 [2024-11-18 19:37:58,717 INFO L226 Difference]: Without dead ends: 64795 [2024-11-18 19:37:58,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:37:58,797 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 912 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:37:58,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 2278 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:37:58,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64795 states. [2024-11-18 19:38:03,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64795 to 47237. [2024-11-18 19:38:03,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47237 states, 35844 states have (on average 1.5374400178551502) internal successors, (55108), 36036 states have internal predecessors, (55108), 11136 states have call successors, (11136), 256 states have call predecessors, (11136), 256 states have return successors, (11136), 10944 states have call predecessors, (11136), 11136 states have call successors, (11136) [2024-11-18 19:38:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47237 states to 47237 states and 77380 transitions. [2024-11-18 19:38:03,995 INFO L78 Accepts]: Start accepts. Automaton has 47237 states and 77380 transitions. Word has length 526 [2024-11-18 19:38:03,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:03,996 INFO L471 AbstractCegarLoop]: Abstraction has 47237 states and 77380 transitions. [2024-11-18 19:38:03,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:38:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 47237 states and 77380 transitions. [2024-11-18 19:38:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-18 19:38:04,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:04,008 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:04,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:38:04,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:04,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1454576468, now seen corresponding path program 1 times [2024-11-18 19:38:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:04,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324739451] [2024-11-18 19:38:04,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:04,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:38:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324739451] [2024-11-18 19:38:05,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324739451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:05,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:05,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:38:05,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439331498] [2024-11-18 19:38:05,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:05,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:38:05,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:38:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:38:05,206 INFO L87 Difference]: Start difference. First operand 47237 states and 77380 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:38:12,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:38:12,597 INFO L93 Difference]: Finished difference Result 163963 states and 265544 transitions. [2024-11-18 19:38:12,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:38:12,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) Word has length 526 [2024-11-18 19:38:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:38:13,304 INFO L225 Difference]: With dead ends: 163963 [2024-11-18 19:38:13,304 INFO L226 Difference]: Without dead ends: 116729 [2024-11-18 19:38:13,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:38:13,490 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 1086 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1655 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:38:13,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 1655 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:38:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116729 states. [2024-11-18 19:38:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116729 to 92160. [2024-11-18 19:38:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92160 states, 69336 states have (on average 1.5270566516672435) internal successors, (105880), 69721 states have internal predecessors, (105880), 22309 states have call successors, (22309), 514 states have call predecessors, (22309), 514 states have return successors, (22309), 21924 states have call predecessors, (22309), 22309 states have call successors, (22309) [2024-11-18 19:38:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92160 states to 92160 states and 150498 transitions. [2024-11-18 19:38:22,761 INFO L78 Accepts]: Start accepts. Automaton has 92160 states and 150498 transitions. Word has length 526 [2024-11-18 19:38:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:38:22,762 INFO L471 AbstractCegarLoop]: Abstraction has 92160 states and 150498 transitions. [2024-11-18 19:38:22,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 1 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 1 states have call predecessors, (83), 1 states have call successors, (83) [2024-11-18 19:38:22,763 INFO L276 IsEmpty]: Start isEmpty. Operand 92160 states and 150498 transitions. [2024-11-18 19:38:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-18 19:38:22,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:38:22,781 INFO L215 NwaCegarLoop]: trace histogram [83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:38:22,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:38:22,782 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:38:22,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:38:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash 902563632, now seen corresponding path program 1 times [2024-11-18 19:38:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:38:22,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122714059] [2024-11-18 19:38:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:38:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:38:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:38:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2024-11-18 19:38:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:38:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122714059] [2024-11-18 19:38:25,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122714059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:38:25,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:38:25,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:38:25,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164546484] [2024-11-18 19:38:25,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:38:25,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:38:25,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:38:25,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:38:25,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:38:25,090 INFO L87 Difference]: Start difference. First operand 92160 states and 150498 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 3 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83)